2021 TESLA MODEL 3 Complaints

I am experiencing phantom breaking on our Model 3. While traveling last weekend on Interstate 5, as well as on CA 101 - the vehicle frequently slowed abruptly while driving at highway speeds. This occurred both with other vehicles around, and with no vehicles present - also while driving at times in clear daylight and while approaching shadows from surrounding objects such as trees or highway overpasses. It rendered the adaptive cruise control non-useable on a 5hr drive home due to the sudden and abrupt slowing of the vehicle.

Was driving on clear roads, there was a driver ahead of me but they were over 100 yards away, the vehicle behind me swerved to make sure they didn't get hit by my car's auto-braking safety feature. the vehicle was on autopilot using adaptive cruise control and just randomly used the safety feature without any warning or indication that there was any object on the freeway. The Incident had occurred in the morning on the 405s freeway.

The contact owns a 2021 Tesla Model 3. The contact stated while driving on autopilot at 60 MPH, the vehicle applied the brake independently. The contact stated no warning light was illuminated. The contact stated he had experienced the failure multiple times. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had not been informed of the failure. The failure mileage was approximately 2,000.

This complaint was prompted by reading recent news reports of 'phantom braking' with our model vehicle. Previous to these reports, I did not have an awareness of NHTSA and their reporting mechanism. Driving on a highway, adaptive cruise control application. Sudden braking applied without my foot touching brake pedal. It was a sunny day, without any obvious need for braking. I was able to apply acceleration which terminated the braking cycle. No harm done, however if there was a car behind me there could have been a significant car accident at high speeds (>70 mph). This 'phantom braking' also occurred late 2021, also at highway speeds, on at least two occasion on the same trip cycle, in similar driving conditions (clear, dry). Nothing has been inspected. No indicators or warning lamps or messages applicable.

This defect affects the lane departure warning system of my vehicle. In certain situations, the lane departure warning system incorrectly activates when the vehicle is turning (vs. leaving a lane). On one occasion, the system activated while turning from my driveway onto the adjacent roadway. On another occasion, the system activated while leaving a parking spot. On both occasions, the vehicle was traveling less than 5 MPH and was not departing from a lane. When the lane departure warning activates, a loud noise is triggered, along with an alert on the center display. A driver's natural response in this scenario is to slow down mid-turn, potentially resulting in unsafe conditions for both driver and nearby motorists.

Three times so far in a week, the car has had extreme hard breaking on the freeway. These were done in full self drive mode. Absolutely terrifying and so unsafe for my family to have this happen.

When driving on one way road and a vehicle is travel inbound. The vehicle will stop extremely hard without any notice of anyone or anything in front of me. Even when travel on a open highway the vehicle will sometime stop extremely hard and freak out like something is in front of me when their is nothing.

At highway speeds while using cruise control I experienced several times what is now being called phantom braking. I have ceased using the cruise control as this is a scary problem.

The car will brake seemingly for no reason while on Autopilot. The environment does not change at all, yet the car will randomly brake very hard as if someone was in front of me and slammed the brakes. It also happens very commonly, more common than tolerable. No warning beeps or chimes or any indication of anything event. I'm not sure if this is inspectable, I have brought the car to service a few times under warranty for unrelated issues. This problem is pretty much widespread across Tesla's autopilot system. This has happened many times, but the most dangerous one by far was on I-75 and slammed the brakes from 85 to 45-35 in a matter of seconds.

I currently drive a 2021 Tesla model 3. When I drive this car down two lane highways my cruise control is almost un usable not to mention auto pilot. Almost every time a larger vehicle, something like a Semi truck comes from the other direction in the opposite lane my car slams the brakes. At night time it’s even worse when headlights are in the distance my car slams the brakes and when the headlights are closer it slams the brakes again. It also has random phantom breaking. I tried the service department and the told me it was a software issue and there was nothing they could do. The technician told me it would improve if I purchased FSD. I don’t believe it, if basic cruise control doesn’t work how is FSD going to work. I don’t know who to contact or even what to do about this issue, the service department refuses to even look at my car.